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Skip to Search Results- 10Graduate and Postdoctoral Studies (GPS), Faculty of
- 10Graduate and Postdoctoral Studies (GPS), Faculty of /Theses and Dissertations
- 4Renewable Resources, Department of
- 4Renewable Resources, Department of/Journal Articles (Renewable Resources)
- 3Biological Sciences, Department of
- 3Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 2Coltman, David (Biological Sciences)
- 1Ambrose, Divakar (Department of Agricultural, Food, and Nutritional Science)
- 1Butler, Stephen (Animal & Grassland Research and Innovation Centre, Teagasc)
- 1Damaraju, Sambasivarao (Laboratory Medicine and Pathology)
- 1Davis, Corey (Biological Sciences)
- 1Ellen Goddard (Resource Economics and Environmental Sociology)
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Ontogenetic patterns in heritable variation for body size: using random regression models in a wild ungulate population
Download2005
Wilson, A.J., Coltman, D.W., Kruuk, L.E.B.
Body size is an important determinant of fitness in many organisms. While size will typically change over the lifetime of an individual, heritable components of phenotypic variance may also show ontogenetic variation. We estimated genetic (additive and maternal) and environmental covariance...
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2010
Dhir, N., Rweyongeza, D., Yeh, F.
We estimated heritabilities and correlations for bud flushing and growth traits of white spruce seedlings, and the correlations of seedling traits with 10- and 11-year height of the same families in the field. The seedling greenhouse experiment had a randomized complete block design with 30...
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Spring 2019
A reproductive phenotype that has high variability, repeatability, heritability, and association with fertility could become an excellent candidate for genetic selection to augment fertility in dairy cows. Therefore, the general objective of this research was to evaluate the aforementioned...
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Trade-offs between wood density and radial growth in the Region H white spruce Controlled Parentage Program, Alberta, Canada
DownloadFall 2019
Trade-offs between wood density and radial growth rate in white spruce were investigated. Decreases in wood density associated with increased radial growth rate have been well documented in several tree species, including white spruce (Picea glauca (Moench) Voss)....
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Fall 2020
Meat and carcass quality traits are of increasing interest to the swine industry due to their influence on customer purchasing and repurchasing decisions. However, meat quality traits must be measured post-mortem, meaning that these traits cannot be measured on the potential breeding candidates...
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Estimation of genetic and phenotypic parameters for ultrasound and carcass merit traits in crossbred beef cattle
Download2014
Bruce, H. L., Plastow, G. S., Moore, S. S., Wang, Z., Nkrumah, D., Miar, Y., Durunna, O.
Ultrasound measurements of 852 crossbred steers along with carcass merit measurements on 756 of them were used to examine their genetic and phenotypic parameters. Traits including ultrasound backfat thickness (UBF), ultrasound ribeye area (UREA), ultrasound marbling (UMAR), carcass weight (CWT),...
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1999
Goonewardene, L. A., Wang, Z., Yang, R. C., Huedepohl, C.
Data from the Alberta Agriculture Food and Rural Development data base, which keeps inventories of elk producers and velvet production information (n = 12 724), were used to estimate genetic and phenotypic variances, heritability and repeatability estimates for velvet antler using REML methods....
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Consumer preferences for the genomic selection for particular traits in breeding dairy cows in Canada
DownloadSpring 2022
This study examines Canadian public preferences for the use of genomic selection in breeding dairy cows for four main traits– feed efficiency, methane emission reduction, enhanced disease resilience, improved cow fertility as well as the use of antibiotics. Since this research information might...
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Genomic selection for pork quality and carcass traits in both cross- and pure-bred populations
DownloadSpring 2015
Pork quality and carcass characteristics are now being integrated into swine breeding objectives because of their economic value. Understanding the genetic basis for these traits is necessary for this to be accomplished. The main objective of this study was to improve pork quality traits in two...
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International genetic evaluations for feed intake in dairy cattle through the collation of data from multiple sources
Download2014
Coffey, M. P., Løvendahl, P., Wang, Z., de Haas, Y., Krattenmacher, N., Berry, D. P., Crowley, J. J., Pryce, J. E., Veerkamp, R. F., Weigel, K., Macdonald, K., Spurlock, D.
Feed represents a large proportion of the variable costs in dairy production systems. The omission of feed intake measures explicitly from national dairy cow breeding objectives is predominantly due to a lack of information from which to make selection decisions. However, individual cow feed...